Replacement/repainted fenders

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   I replaced my fenders with the flat Jeep-style defenders after a blowup.  They were bare aluminum, so I sprayed them with PlastiDip and baked them.  I read PlastiDip adheres well to aluminum, and could be peeled off if you didn't like it.
It did go on easy, and looked pretty good.  But after miles of gravel road, I discovered it's not very impact-resistant:

I resprayed with Raptor 2k aerosol bedliner.  It's expensive, but is supposed to be very tough.  

The downsides in my opinion:
Expensive!
Has built-in hardener you activate before spraying, so it only lasts 60 minutes, limiting the number of coats you can do because of waiting time between coats.
Goes on pretty speckled, unless you can spray from a couple of feet or so.  I worry that it's going to be a dust magnet, which is a bummer since I drove on dirt/gravel a lot.

Here's the after look: